Home / 15,089,578.92-20,823,621.30-8,214,112.62

Finding the Fourth Proportional to 15,089,578.92, 20,823,621.30 and 8,214,112.62

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Solution

The fourth proportional to 15,089,578.92, 20,823,621.30 and 8,214,112.62 is: 11,335,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,089,578.92 : 20,823,621.30 = 8,214,112.62 : x
  2. Step 2: Convert to fraction form
    15,089,578.92/20,823,621.30 = 8,214,112.62/x
  3. Step 3: Cross multiply
    15,089,578.92x = 20,823,621.30 × 8,214,112.62
  4. Step 4: Simplify right side
    15,089,578.92x = 171,047,570,514,430.81
  5. Step 5: Solve for x
    x = 171,047,570,514,430.81/15,089,578.92
  6. Step 6: Final answer
    x = 11,335,476.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.